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CPC technology class · C10

C10B - Destructive Distillation Of Carbonaceous Materials For Pr…

Destructive distillation of carbonaceous materials for production of gas, coke, tar, or similar materials. 1,527 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.

1,527
US patents granted
#5/10
in C10
5.6%
C10 class share
-1%
5-yr velocity

The verdict

According to USPTO PatentsView, Destructive Distillation Of Carbonaceous Materials For Pr… ranks #403 of 670 CPC technology areas - 1,527 US patents granted since 2015, with recorded grant volume down 1% over five years.

#403
of 670 CPC technology areas
1,527
US patents granted, 2015–2025
Suncoke Technology And…
leading assignee (85)
-1%
grant velocity, last 5 yrs

How C10B's grant cadence moved

Between 2020–2024, C10B recorded 664 grants versus 668 in 2015–2019 (-1% equal-window velocity). Across complete years, output peaked in 2019 at 150 grants and bottomed in 2023 at 120 (+25% peak-over-trough). Lead assignee Suncoke Technology AND Development LLC holds 5.6% of the class ; the top three share 10.3%.

Leaderboard read

C10B concentration, lead at 5.6%

Suncoke Technology AND Development LLC leads this historical grant record at 5.6% of C10B - us corporation assignees hold 72% of class grants (494 of 684). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share
5.6%

85 of 1,527 grants

Top three share
10.3%

of the class's recorded grants

Lead over #2
41

more grants than Carbon Technology Holdings, LLC

Where C10B sits inside C10

Among 10 subclasses in C10 (Petroleum, GAS OR Coke INDUSTRIES; Technical Gases Containing Carbon MONOXIDE; FUELS; LUBRICANTS; Peat), C10B ranks #5 and holds 5.6% of the parent class's 27,322 recorded grants. Sibling chips below are the other subclasses in the same parent class, not the nationwide volume/lead-share peers further down.

C10G 9,942 C10L 5,025 C10M 4,240 C10N 3,834 C10J 1,392 C10K 1,080 C10C 264 C10F 12

Rising assignees active in C10B

Company-wide grant multiples (2022–2024 vs 2019–2021) among assignees with ≥5 patents in this subclass. Growth is company-wide; class patent counts are subclass-specific.

  1. #1 thyssenkrupp Uhde GmbH 14x 0 → 14 company-wide · 11 in C10B
  2. #2 Aries Clean Technologies LLC 11x 0 → 11 company-wide · 6 in C10B
  3. #3 Torrgas Technology B.V. 4.00x 1 → 4 company-wide · 5 in C10B
  4. #4 Carbon Holdings Intellectual Properties, LLC 2.60x 5 → 13 company-wide · 14 in C10B
  5. #5 Carbon Technology Holdings, LLC 2.33x 12 → 28 company-wide · 44 in C10B

C10B grants by year, peak 2019 (150)

US utility-patent grants per year in C10B, 2015–2025 - recent five years are down 1% versus 2015–2019.

110120130140150160 20152016201720182019202020212022202320242025 136

Who leads C10B?

The 12 most active assignees in Destructive Distillation OF Carbonaceous Materials FOR Production OF GAS, Coke, TAR, OR Similar Materials - wider bars mean more grants

patents

What this shows Suncoke Technology… is the most active filer in C10B, holding 85 of the 1,527 patents in this class. Concentration at the top signals how contestable this technology area is for new entrants.

Source USPTO PatentsView, granted utility patents As of 2015–2025 grant years
View data table
Top patent holders in CPC subclass C10B
Rank Company Patents in C10B
#1 Suncoke Technology AND Development LLC 85
#2 Carbon Technology Holdings, LLC 44
#3 Cool Planet Energy System, Inc. 29
#4 Anellotech, Inc. 20
#5 UOP LLC 18
#6 Indian Oil Corporation Limited 17
#7 Ensyn Renewables, Inc. 16
#8 Inaeris Technologies, LLC 15
#9 Chevron Phillips Chemical Company LP 14
#10 Carbon Holdings Intellectual Properties, LLC 14
#11 Ecogensus LLC 12
#12 thyssenkrupp Uhde GmbH 11
#13 Biochar Now, LLC 11
#14 Flowserve Management Company 10
#15 Bechtel Hydrocarbon Technology Solutions, Inc. 10
#16 Amec Foster Wheeler USA Corporation 10
#17 McAlister Technologies, LLC 9
#18 CHZ Technologies, LLC 9
#19 Thyssenkrupp Industrial Solutions AG 8
#20 Proton Power, Inc. 8

Footprint here vs. claim strategy

Each dot is a leading C10B assignee, placed by how many patents it holds in this class (horizontal) against its company-wide average claims per patent (vertical) - a read on whether the class is led by broad-but-shallow filers or focused deep-claim players.

Top 14 C10B assignees by class footprint. Bubble size = patents in C10B. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 10152025 020406080100 Patents in C10B Avg claims / patent (company-wide) Suncoke Technology…Carbon Technology…Cool Planet Energy…AnellotechUopIndian OilEnsyn RenewablesInaerisChevron Phillips…Carbon Holdings…Ecogensusthyssenkrupp UhdeBiochar NowFlowserve Management
Top 14 C10B assignees by class footprint. Bubble size = patents in C10B. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Classes near C10B's 1,527-grant footprint

Nationwide nearest neighbors for C10B (#403 of 670 by volume ; lead share 5.6%) - not the C10 parent-class siblings above.

Nearest by grant volume

E03D 1,515 F03B 1,544 E03B 1,503 B25H 1,500

Nearest by lead-assignee share

H03G 5.6% H03D 5.6% H03M 5.5% C10N 5.5%

Questions about C10B

Which company holds the most patents in C10B?
Suncoke Technology AND Development LLC leads C10B with 85 patents (5.6% of the subclass). By PatentsView assignee type, us corporations account for 72% of class grants.
Which C10B assignees grew fastest recently?
Among assignees with ≥5 grants in C10B, thyssenkrupp Uhde GmbH shows the highest company-wide grant multiple (14x: 0 grants in 2019–2021 → 14 in 2022–2024) while holding 11 patents in this subclass. Growth is company-wide, not class-only.
How does C10B compare inside parent class C10?
Inside C10 (Petroleum, GAS OR Coke INDUSTRIES; Technical Gases Containing Carbon MONOXIDE; FUELS; LUBRICANTS; Peat), C10B ranks #5 of 10 subclasses by grant volume and holds 5.6% of the parent class total. The largest sibling is C10G (9,942 grants).

What to do with this data

C10B in context - here's where to go next.

  • Suncoke Technology AND Development LLC leads C10B with 85 grants in this class. See full portfolio
  • C10B ranks #403 of 670 by grant volume among all tracked CPC technology areas. See the ranking
  • Inside parent class C10, the largest sibling subclass is C10G with 9,942 grants. Explore C10G

Figures reflect USPTO PatentsView grant data through 2026-05-15; pending applications not yet granted are not counted.

Methodology - C10B figures are USPTO PatentsView granted-utility totals for this subclass (1,527 grants in the tracked window).

Every figure on PlainPatent is rendered directly from USPTO source data, no number is typed in by an editor. This page draws directly on USPTO source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.